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Can harmonic balance cause engine viberation at idle?

(1990 Jeep Cherokee)
in Phoenix, AZ on January 03, 2015
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Popular Answer
on January 03, 2015
Yes, if it has failed..BUT..not the kind of vibration you're thinking about!! .. In short: Harmonic or frequency vibration dampining within the crankshaft it its job, that isn't going to vibrate the vehicle in a way that can be detected! You most likely have an engine or transmission mount that has failed.. Transmission mounts are a common problem on this vehicle!
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